What are the cheapest airlines to fly from St. Louis to Quebec one-way?

To fly one-way, consider booking your trip with Air Canada, which is currently one of the cheapest options available, starting at C$ 225. American Airlines flights start at C$ 243 while deals on United Airlines start at C$ 259 one-way.

How far in advance should I book a flight from St. Louis to Quebec?

Travellers have found it’s best to book a flight 51 days in advance to save up to 82% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 51 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from St. Louis to Quebec 1-2 weeks in advance for as low as C$ 659, or C$ 1,109 for flights within the next 24 hours.

What is the cheapest month to fly from St. Louis to Quebec?

The best pricing can be found in the month of August. Prices to Quebec from St. Louis average C$ 869. You can even find prices in August for less than C$ 869, as users have found deals to Quebec from as low as C$ 320. The month of June appears to be one of the more expensive times to travel to Quebec from St. Louis. Flying in the targeted month can save you up to 27%.

What is the cheapest time of day to fly from STL to QC?

When flying from St. Louis to Quebec, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly from for flights from St. Louis to Quebec?

Lambert-St Louis (STL) is the airport you will fly out of if you book a flight from St. Louis to Quebec. It is only a 20.4 km journey to Lambert-St Louis (STL) from St. Louis’s city centre.

Can I find deals for flights from St. Louis to Quebec that include hotel bookings?

Yes. In addition to deals on St. Louis to Quebec flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from St. Louis to Quebec?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Quebec.

Can I find deals for business class flights from St. Louis to Quebec?

Yes. Cheapflights offers flight deals from St. Louis to Quebec by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

C$ 219+ Flights from St. Louis to Quebec

Cheap flight deals from St. Louis to Quebec

Round-trip from	C$ 527
One-way from	C$ 219
Popular in	June
Cheapest in	August
Average price	C$ 801

Air Canada
10/5-18/5
3 total stops
17h 12m total
St. Louis to Quebec

Search Deals

15/5
2 total stops
13h 27m total
St. Louis to Quebec

Search Deals

Highest demand for flights based on searches. 4% potential increase in price (C$ 61 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (C$ 31 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

Find flight deals from St. Louis to Quebec

Cheapest flights from St. Louis to Quebec
Explore the most affordable flight options available from St. Louis to Quebec. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 April 2025.

Sat 10/59:40 a.m.STL - YQB

2 stops8h 56mAir Canada

Sun 18/55:20 a.m.YQB - STL

1 stop8h 16mAir Canada

Deal found 16/4C$ 527

Mon 4/84:00 p.m.STL - YQB

1 stop5h 00mUnited Airlines

Fri 8/810:25 a.m.YQB - STL

1 stop5h 56mUnited Airlines

Deal found 17/4C$ 567

Thu 15/510:10 a.m.STL - YUL

2 stops13h 27mMultiple Airlines

Thu 22/56:45 a.m.YUL - STL

1 stop18h 07mMultiple Airlines

Deal found 17/4C$ 573

Mon 4/87:23 a.m.STL - YQB

1 stop5h 17mAmerican Airlines

Fri 8/812:06 p.m.YQB - STL

2 stops9h 17mAmerican Airlines

Deal found 16/4C$ 582

Fri 2/51:30 p.m.STL - YUL

Nonstop2h 30mAir Canada

Sun 4/56:10 p.m.YUL - STL

Nonstop2h 48mAir Canada

Deal found 16/4C$ 642

Tue 27/56:00 a.m.STL - YUL

1 stop9h 04mDelta

Wed 28/55:00 p.m.YUL - STL

1 stop16h 07mDelta

Deal found 16/4C$ 652

Wed 11/66:04 a.m.STL - YUL

1 stop9h 41mAmerican Airlines

Tue 17/612:30 p.m.YUL - STL

1 stop9h 00mAmerican Airlines

Deal found 16/4C$ 678

Wed 28/58:15 a.m.STL - YUL

1 stop6h 34mUnited Airlines

Wed 28/56:10 p.m.YUL - STL

Nonstop2h 48mUnited Airlines

Deal found 16/4C$ 704

Sat 10/59:40 a.m.STL - YQB

2 stops8h 56mMultiple Airlines

Sun 18/55:20 a.m.YQB - STL

3 stops38h 21mMultiple Airlines

Deal found 16/4C$ 733

Sat 24/55:17 p.m.STL - YUL

1 stop4h 59mWestJet

Sat 31/56:00 a.m.YUL - STL

1 stop4h 35mWestJet

Deal found 16/4C$ 840

Best flights from St. Louis to Quebec
Discover carefully curated flight deals from St. Louis to Quebec that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 17 April 2025.

Sat 10/59:40 a.m.STL - YQB

2 stops8h 56mAir Canada

Sun 18/55:20 a.m.YQB - STL

1 stop8h 16mAir Canada

Deal found 16/4C$ 527

Mon 4/84:00 p.m.STL - YQB

1 stop5h 00mUnited Airlines

Fri 8/810:25 a.m.YQB - STL

1 stop5h 56mUnited Airlines

Deal found 17/4C$ 567

Thu 15/510:10 a.m.STL - YUL

2 stops13h 27mMultiple Airlines

Thu 22/56:45 a.m.YUL - STL

1 stop18h 07mMultiple Airlines

Deal found 17/4C$ 573

Mon 4/87:23 a.m.STL - YQB

1 stop5h 17mAmerican Airlines

Fri 8/812:06 p.m.YQB - STL

2 stops9h 17mAmerican Airlines

Deal found 16/4C$ 582

Tue 27/56:00 a.m.STL - YUL

1 stop9h 04mDelta

Wed 28/55:00 p.m.YUL - STL

1 stop16h 07mDelta

Deal found 16/4C$ 652

Sat 24/55:17 p.m.STL - YUL

1 stop4h 59mWestJet

Sat 31/56:00 a.m.YUL - STL

1 stop4h 35mWestJet

Deal found 16/4C$ 840

Fri 2/51:30 p.m.STL - YUL

Nonstop2h 30mAir Canada

Sun 4/56:10 p.m.YUL - STL

Nonstop2h 48mAir Canada

Deal found 16/4C$ 642

Wed 11/66:04 a.m.STL - YUL

1 stop9h 41mAmerican Airlines

Tue 17/612:30 p.m.YUL - STL

1 stop9h 00mAmerican Airlines

Deal found 16/4C$ 678

Wed 28/58:15 a.m.STL - YUL

1 stop6h 34mUnited Airlines

Wed 28/56:10 p.m.YUL - STL

Nonstop2h 48mUnited Airlines

Deal found 16/4C$ 704

Sat 10/59:40 a.m.STL - YQB

2 stops8h 56mMultiple Airlines

Sun 18/55:20 a.m.YQB - STL

3 stops38h 21mMultiple Airlines

Deal found 16/4C$ 733

Direct flights from St. Louis to Quebec
Explore direct flight options from St. Louis to Quebec based on user searches, and compare prices and availability for your desired travel dates. Data last updated 17 April 2025.

Fri 2/51:30 p.m.STL - YUL

Nonstop2h 30mAir Canada

Sun 4/56:10 p.m.YUL - STL

Nonstop2h 48mAir Canada

Deal found 16/4C$ 642

Thu 18/91:30 p.m.STL - YUL

Nonstop2h 30mUnited Airlines

Tue 23/96:10 p.m.YUL - STL

Nonstop2h 47mUnited Airlines

Deal found 16/4C$ 736

Last-minute flights from St. Louis to Quebec
Discover last-minute flight deals from St. Louis to Quebec. Data last updated 17 April 2025 and is based on user searches.

Thu 24/45:41 p.m.STL - YUL

1 stop19h 29mMultiple Airlines

Sun 27/49:15 a.m.YUL - STL

1 stop9h 00mMultiple Airlines

Deal found 16/4C$ 707

Thu 24/46:30 a.m.STL - YUL

2 stops10h 20mUnited Airlines

Sun 27/48:30 a.m.YUL - STL

2 stops8h 17mUnited Airlines

Deal found 16/4C$ 1,030

Fri 2/51:30 p.m.STL - YUL

Nonstop2h 30mAir Canada

Sun 4/56:10 p.m.YUL - STL

Nonstop2h 48mAir Canada

Deal found 16/4C$ 642

Mon 5/57:31 a.m.STL - YUL

1 stop8h 24mAmerican Airlines

Mon 12/512:30 p.m.YUL - STL

1 stop12h 21mAmerican Airlines

Deal found 17/4C$ 681

Sat 10/59:40 a.m.STL - YQB

2 stops8h 56mAir Canada

Sun 18/55:20 a.m.YQB - STL

1 stop8h 16mAir Canada

Deal found 16/4C$ 527

Sat 10/59:40 a.m.STL - YQB

2 stops8h 56mMultiple Airlines

Sun 18/55:20 a.m.YQB - STL

3 stops38h 21mMultiple Airlines

Deal found 16/4C$ 733

Thu 15/510:10 a.m.STL - YUL

2 stops13h 27mMultiple Airlines

Thu 22/56:45 a.m.YUL - STL

1 stop18h 07mMultiple Airlines

Deal found 17/4C$ 573

Sat 24/55:17 p.m.STL - YUL

1 stop4h 59mWestJet

Sun 1/66:00 a.m.YUL - STL

1 stop4h 35mWestJet

Deal found 16/4C$ 840

Tue 27/56:00 a.m.STL - YUL

1 stop9h 04mDelta

Wed 28/55:00 p.m.YUL - STL

1 stop16h 07mDelta

Deal found 16/4C$ 652

Wed 28/58:15 a.m.STL - YUL

1 stop6h 34mUnited Airlines

Wed 28/56:10 p.m.YUL - STL

Nonstop2h 48mUnited Airlines

Deal found 16/4C$ 704

One-way flights from St. Louis to Quebec
Search for one-way flight options from St. Louis to Quebec. Find affordable one-way fares based on user searches. Data last updated 17 April 2025.

Thu 15/510:10 a.m.STL - YUL

2 stops13h 27mMultiple Airlines

Deal found 17/4C$ 219

Mon 12/51:30 p.m.STL - YQB

1 stop5h 06mAir Canada

Deal found 16/4C$ 225

Wed 14/55:00 a.m.STL - YQB

1 stop7h 30mAmerican Airlines

Deal found 16/4C$ 243

Wed 28/55:27 p.m.STL - YQB

2 stops17h 35mUnited Airlines

Deal found 15/4C$ 259

Thu 4/97:23 a.m.STL - YUL

1 stop8h 17mAmerican Airlines

Deal found 16/4C$ 269

Tue 27/56:00 a.m.STL - YUL

1 stop9h 04mDelta

Deal found 17/4C$ 272

Thu 4/91:30 p.m.STL - YUL

Nonstop2h 30mAir Canada

Deal found 16/4C$ 331

Tue 27/55:00 a.m.STL - YUL

2 stops12h 25mUnited Airlines

Deal found 17/4C$ 336

Mon 12/512:15 p.m.STL - YQB

3 stops26h 40mMultiple Airlines

Deal found 16/4C$ 362

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Quebec that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Sat 10/5

1:30 p.m.-7:36 p.m.

1 stop5h 06m

Québec City

Sun 18/5

5:20 a.m.-12:36 p.m.

1 stop8h 16m

C$ 527

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Mon 4/8

4:00 p.m.-10:00 p.m.

1 stop5h 00m

Québec City

Fri 8/8

10:25 a.m.-3:21 p.m.

1 stop5h 56m

C$ 567

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Thu 15/5

10:10 a.m.-12:37 a.m.

2 stops13h 27m

Montreal Pierre Elliott Trudeau Intl

Thu 22/5

6:45 a.m.-11:52 p.m.

1 stop18h 07m

C$ 573

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Mon 4/8

7:23 a.m.-1:40 p.m.

1 stop5h 17m

Québec City

Fri 8/8

12:06 p.m.-8:23 p.m.

2 stops9h 17m

C$ 582

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Fri 2/5

1:30 p.m.-5:00 p.m.

Nonstop2h 30m

Montreal Pierre Elliott Trudeau Intl

Sun 4/5

6:10 p.m.-7:58 p.m.

Nonstop2h 48m

C$ 642

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Tue 27/5

6:00 a.m.-4:04 p.m.

1 stop9h 04m

Montreal Pierre Elliott Trudeau Intl

Wed 28/5

5:00 p.m.-8:07 a.m.

1 stop16h 07m

C$ 652

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Wed 11/6

6:04 a.m.-4:45 p.m.

1 stop9h 41m

Montreal Pierre Elliott Trudeau Intl

Tue 17/6

12:30 p.m.-8:30 p.m.

1 stop9h 00m

C$ 678

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Wed 28/5

8:15 a.m.-3:49 p.m.

1 stop6h 34m

Montreal Pierre Elliott Trudeau Intl

Wed 28/5

6:10 p.m.-7:58 p.m.

Nonstop2h 48m

C$ 704

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Sat 10/5

9:40 a.m.-7:36 p.m.

2 stops8h 56m

Québec City

Sun 18/5

5:20 a.m.-6:41 p.m.

3 stops38h 21m

C$ 733

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Sat 24/5

5:17 p.m.-11:16 p.m.

1 stop4h 59m

Montreal Pierre Elliott Trudeau Intl

Sun 1/6

6:00 a.m.-9:35 a.m.

1 stop4h 35m

C$ 840

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/4

Showing 1-10 of 19 results

Best time to book a flight from St. Louis to Quebec

Have a flexible travel schedule? Discover the best time to fly to Quebec from St. Louis with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Quebec

What is the cheapest month to book a flight from St. Louis to Quebec?

Currently, October is the cheapest month in which you can book a flight from St. Louis to Quebec (average of C$ 241). Flying from St. Louis to Quebec in July is currently the most expensive (average of C$ 312). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Rainfall in Quebec by month

In terms of precipitation, rainfall in Quebec ranges from 64.0 - 111.0 mm per month. August is typically the wettest month, when rainfall can reach 111.0 mm. February is typically the driest time to visit Quebec when rainfall is around 64.0 mm.

Temperature in Quebec by month

If weather is an important factor for your trip to Quebec, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -9.0 C).

Reviews of airlines servicing Quebec

Get a feel of what it's like to fly with Delta, United Airlines and American Airlines from St. Louis to Quebec by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,917 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

7,917 reviews

Delta

8.0

Very good

7,917 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

8,667 reviews

Delta

8.0

Very good

7,917 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,917 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

WestJet

7.2

Good

2,809 reviews

Delta

8.0

Very good

7,917 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Canada

7.0

Good

9,142 reviews

Delta

8.0

Very good

7,917 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What airport do you fly from for flights from St. Louis to Quebec?
Lambert-St Louis (STL) is the airport you will fly out of if you book a flight from St. Louis to Quebec. It is only a 20.4 km journey to Lambert-St Louis (STL) from St. Louis’s city centre.
What are the cheapest airlines to fly from St. Louis to Quebec one-way?
To fly one-way, consider booking your trip with Air Canada, which is currently one of the cheapest options available, starting at C$ 225. American Airlines flights start at C$ 243 while deals on United Airlines start at C$ 259 one-way.
Can I find deals for flights from St. Louis to Quebec that include hotel bookings?
Yes. In addition to deals on St. Louis to Quebec flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to Quebec?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Quebec.
Can I find deals for business class flights from St. Louis to Quebec?
Yes. Cheapflights offers flight deals from St. Louis to Quebec by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from St. Louis to Quebec?
Currently, October is the cheapest month in which you can book a flight from St. Louis to Quebec (average of C$ 241). Flying from St. Louis to Quebec in July is currently the most expensive (average of C$ 312). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for St. Louis to Quebec

Complete your trip

Quebec car rentals

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Mont Joli Airport car rentals

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How does Cheapflights help users find flights from St. Louis to Quebec?

Cheapflights helps you search for flights from St. Louis to Quebec via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Quebec?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from St. Louis to Quebec.

Can Cheapflights find flights from St. Louis to Quebec with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from St. Louis to Quebec, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from St. Louis to Quebec become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Quebec from St. Louis today and book when prices fit your budget.

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Cheap flights from St. Louis to Quebec from C$ 219

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/5. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from St. Louis to Quebec

Keep the following information in mind while searching for St. Louis to Quebec flight deals. Data was last updated 17 April 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from St. Louis to Quebec

Cheapest flights from St. Louis to QuebecExplore the most affordable flight options available from St. Louis to Quebec. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 April 2025.

Explore the most affordable flight options available from St. Louis to Quebec. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 April 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Quebec that are best for you.

Best time to book a flight from St. Louis to Quebec

Have a flexible travel schedule? Discover the best time to fly to Quebec from St. Louis with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Quebec

What is the cheapest month to book a flight from St. Louis to Quebec?

Rainfall in Quebec by month

Plan your trip to Quebec by taking into account the average rainfall totals by month.

Temperature in Quebec by month

Plan your trip to Quebec by taking into account the average temperature totals by month.

Reviews of airlines servicing Quebec

Get insights into the airlines that provide service to Quebec. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Quebec. Reviews last updated 17 April 2025.

Get a feel of what it's like to fly with Delta, United Airlines and American Airlines from St. Louis to Quebec by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Quebec. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from St. Louis to Quebec?

What are the cheapest airlines to fly from St. Louis to Quebec one-way?

Can I find deals for flights from St. Louis to Quebec that include hotel bookings?

How can I find direct flights from St. Louis to Quebec?

Can I find deals for business class flights from St. Louis to Quebec?

What is the cheapest month to book a flight from St. Louis to Quebec?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to Quebec

See prices for flight routes from nearby airports that may be better suited for you.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from St. Louis to Quebec?

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Quebec?

Can Cheapflights find flights from St. Louis to Quebec with no change fees?

Can Cheapflights notify me if prices for flights from St. Louis to Quebec become cheaper?

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Cheapest flights from St. Louis to Quebec
Explore the most affordable flight options available from St. Louis to Quebec. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 April 2025.